Effect of Ror1 and Ror2 suppression by antisense oligonucleotide treatment on stage III hippocampal neurons. 2-day in culture control (A,D,G,J), Ror1 sense-treated (B,E), Ror2 sensetreated (H,K), Ror1 antisensetreated (C,F) and Ror2 antisensetreated (I,L) hippocampal neurons were double stained with tubulin (A-C, G-I) and Ror1 (D-F) or Ror2 (J-L) antibodies. Ror-depleted neurons elongated shorter minor processes (mp) but longer axons (ax) than control neurons (arrows in F,L). Bar, 20 μm.